39696481951896 has 384 divisors, whose sum is σ = 131398792358400. Its totient is φ = 9755392204800.

The previous prime is 39696481951879. The next prime is 39696481951921. The reversal of 39696481951896 is 69815918469693.

It is a Harshad number since it is a multiple of its sum of digits (84).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 298490856 + ... + 298623816.

It is an arithmetic number, because the mean of its divisors is an integer number (342184355100).

Almost surely, 2^{39696481951896} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39696481951896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65699396179200).

39696481951896 is an abundant number, since it is smaller than the sum of its proper divisors (91702310406504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39696481951896 is a wasteful number, since it uses less digits than its factorization.

39696481951896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133791 (or 133776 counting only the distinct ones).

The product of its digits is 5441955840, while the sum is 84.

The spelling of 39696481951896 in words is "thirty-nine trillion, six hundred ninety-six billion, four hundred eighty-one million, nine hundred fifty-one thousand, eight hundred ninety-six".